Pump.



E. K. H001);

PUMP.

LPPLIOATIOH FILED In. 19, 1906.

Patented Jan. 26, 1909.

' pump.

same, have invented certain whereby there ERNEST K. HOOD, OF INDIANAPOLIS, INDIANA.

PUMP.

Specification of Letters Patent.

Patented Jan. 26, 1909.

Application filed March 19, 1906. Serial No. 306,769.

T c all whom it may concern:

Be it known that I, ERNEST K. HOOD, a citizen of the United States of America, .residing at Indianapolis, in the county of Marion and State of Indiana, post-office the new and useful Improvements in Pumps, of which the following is a specification. V

The type of pump I have improved consists of a head with a discharge opening and a shaft suspended in a well casing, and rovided at intervals with spiral ropel ers. Between these impellers are place retarding plates. The shaft is rotated rapidly, and this starts the water in a spiral upward path. The retarder plates arrest its spiral motion and throw the water upward so that the next propeller can catch it. All pumps of this type have, heretofore, lteen provided with retarders, either supported by the shafting or by the sides of the well casing.

The object of my invention is to provide retarders supported from the top of the well which canfte readily removed; and to also provide a remova. le protecting shield, carried l. y the same means carrying the retard ers, whereby the propellers cannot wear either the well casing '01 retarder carrying means.

Another o sject of my invention is to provide means for packing a pump of this type will he no back-leakage of water.

My invention consists in the combination and arrangement of parts hereinafter descri' ed and claimed.

Figure 1 represents a cross-section of my Fig. 2 represents a perspective view of one shield and set of retarders.

'Ihe numeral 1 represents a head consisting of a tase plate, *2, a discharge section, 3, and a head yoke, 4'. A driving shaft, 5 is carried l y this yoke and head and has shafting, 6 coupled to it which extends into the well. Propellers 7 are car ried .ly shaft 6 at desired intervals. Sup orting bars 8 are secured to the pump head and extend down into the well along the inner periphe I thereof. These bars carry retarding bla es 9 at desired intervals, preferably curved in form and extending toward the center of the well. These may lre located at any point between the propellers, but I find it best practice to locate them immediately below a propeller. A removable ring or annulus 10 is fastened to liars 8 in sub position as to surround the re eller, thus inventing wear of the tars, 8 or the wel casing. T o insure a water joint lfetween ring 10 and the well casing I provide a flexille packing strip or strips 11. These also take up inequalities in the casing, and tend to cushion any vibration in the shaft or ropellers.

In operation the shafting, retarder cage and ring are all inserted in the well together. The pump is started and water is raised as heretofore descril" ed. Water forced from one propeller to another cannotu'eturn except through th ropeller, and as this is r otating, it cannot r0 through it.

Actual practice s IOWS that the cushion packing strips reduce the wear lietween the propeller and ring 10 to a minimum, as any ViilfttiOIl is received on a cushioned surface. If rings 10 lecome worn, the pump can he pulled and these replaced.

I am aware of the fact that impellers have been madewith a ring cast integral with them, and I propose to use this with my imrovement. However, a plain impeller may 2e used.

I claim as my invention:

In a pump of the class descrired the comhination of a head; a shaft extended into the well, one or more impellers carried there y, supporting lears extending from the head down into the well and parallel with the shaft; a protecting shield secured to said l ars for each impeller, a cushion or packing strip around saidprotectin shield and letween the bars and retarder hlad'es secured to said bars, substantially as and for the purpose set forth.

ERNEST K. HOOD.

Witnesses:

VESTA M. H001), HARRIET H. H001). 

